Rockstop is a resilient, highly shock-absorbing rubberized polymer designed specifically for your MTB rim. Its purpose is to safeguard your rim from dents and your tyre from most impact punctures and burping. The ingenious design of the cross bridges ensures that the Rockstop edges snugly press against the sidewall of your tyre. This means that any collision with a rock will be absorbed by the meaty layer of Rockstop in between your tyre and rim, effectively preventing pinch punctures and damage to your rim.Key Features and Benefits:- Made from a high-quality, shock-absorbing rubberized polymer- Weighs approximately 250g per wheel, ensuring minimal additional weight to your bike- Easy to install, with no need for adhesive or extra valves- Comes ready assembled for your convenience- Manufactured in the UKBox Contents:- 1 x Rockstop Rim Protector- Assembly guide- Rockstop merchandise- A little slice of Cumbrian air!Invest in the Rockstop Rim Protector to safeguard your MTB rim and enjoy a worry-free ride on any terrain.